基于Ansys的磷酸铁锂储能电池系统热分析及优化  

Thermal Simulation and Optimization of Lithium Iron Phosphate Battery Modules Based on Ansys

作　　者：陈旭海 罗景生 陈永福 谢建华 陈恺 董纪清[2] CHEN Xuhai;LUO Jingsheng;CHEN Yongfu;XIE Jianhua;CHEN Kai;DONG Jiqing(POWERCHINA Fujian Electric Power Survey&Design Institute Co.,Ltd.,Fuzhou 350003,China;College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]中国电建集团福建省电力勘测设计院有限公司,福建福州350003 [2]福州大学电气工程与自动化学院,福建福州350108

出　　处：《电器与能效管理技术》2020年第10期41-46,共6页Electrical & Energy Management Technology

基　　金：中国电力建设股份有限公司项目(DJ-ZDXM-2018-43)、福建省科学技术厅项目(2019H01010204,《百兆瓦时级大规模锂电池储能站关键技术研究及示范应用》)。

摘　　要：基于Ansys/Fluent有限元分析软件,对电网储能系统的磷酸铁锂储能电池进行建模,并对电池模块进行温度场和流场的仿真。仿真结果表明,电池机柜顶层与底层流体流量存在较大差异,导致不同电池模块层间温度分布不均匀,温差较大。对电池机柜前、后门进行改进,优化了前、后主风道,降低了电池机柜内的最高温度;在机柜门上增加导流板,改善了电池机柜内温度场和流场分布的均匀性,有效降低了不同电池模块间的温差。Based on the finite element analysis software of Ansys/Fluent,this paper built the model of lithium iron phosphate batteries and simulated the temperature field and flow field of the battery modules used in the power grid energy storage system.The simulation results show that there is a large difference in the fluid flow between the top layer and the bottom layer of the battery modules,leading a large uneven temperature difference between different layers of the battery module.By improving the front and rear doors of the battery cabinet,the front and rear main air passages were optimized to reduce the maximum temperature in the battery cabinet.Then,by adding deflector plates on the cabinet door,the uniformity of temperature field and flow field distribution in the battery cabinet was improved,and the temperature difference between different battery modules was effectively reduced.

关 键 词：磷酸铁锂电池模块 热仿真 温度场 流场 挡风板 

分 类 号：TM912.1[电气工程—电力电子与电力传动]